TY - `BOOK` AU - Doyle, J. C. AU - Butler, C. J. TI - Classification of ADH objective prism spectra : J. C. Dolyle ; C. J. Butler PB - Armagh Oberservatory CY - Armagh PY - 1978 LA - eng SE - S. 229 - 240 T2 - Contributions from the Armagh Observatory M1 - 102 N1 - Aus: The irish astronomical journal, Vol. 13, 7/8 CN - LS/US 1080 A727 C764-3 AN - UBHD-67554808 ER -